Smoke filtration unit and method of using same

摘要

The smoke filtration unit described herein has an internal cylindrical duct for ducting exhaust smoke from an exhaust flue to a shutter pivotally mounted within the cylindrical duct. The shutter can move between at least two positions. The shutter, when located in a first position, directs exhaust smoke to a cylindrical filter. An exhaust fan draws the exhaust smoke through the filter. The residual gas is vented to the atmosphere. The cylindrical filter is mounted on a vibration mount that can vibrate the filter to dislodge particulate matter that collects on the surface of the filter. The dislodged particulate matter falls into an ash collection area. The smoke filtration unit is controlled by a microcontroller that monitors temperature and pressure conditions within the unit. If excessive pressure conditions are detected, the microcontroller energizes the vibration mount to dislodge particulate matter from the filter. If the condition is not corrected the microcontroller moves the shutter to a second position where the exhaust smoke is vented directly to the atmosphere without first being filtered.